<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 引入vue.js  -->
    <script src="../node_modules/vue/dist/vue.js"></script>
</head>
<body>
    <!-- #app id为app的div -->
    <div id="app">
        <div v-if="picShow">true显示，flase不显示</div>
        <div v-if="score>=90&& score <=100">优秀</div>
        <div v-else-if="score>=70&&score<90">良好</div>
        <div v-else-if="score>=60&&score<70">及格</div>
        <div v-else-if="score>=0&&score<60">不及格</div>
        <div v-else>错误</div>
    </div>
    <script>
        // 实例化vuejs应用
        var vm = new Vue({
            el: "#app",
            data: {
                picShow: true,
                score: 65,
            },
        })
    </script>
</body>
</html>
